Oil on canvas, painted by Sofonisba Anguissola in Cremona in 1555, when she
was 23. It is now at the National Museum in Poznań, Poland.
The painting shows her sisters Lucia (on the left, looking out at us),
Europa (in the middle) and Minerva (on the right, hand raised), together
with the family servant. It is one of the earliest European paintings of an
everyday group scene. She chose the subject herself, with no commission
behind it, which was a radical thing for a woman painter in the 16th
century.